And unless you're plugged in to the tech world, there's a good chance you've never heard of it.

It's best to think of Quora as a cross between Reddit and Yahoo Answers. (Except the questions and answers in Quora tend to be a lot better.)

Quora aims to provide you with an accurate answer to pretty much any question you could have.

And it usually works. Like Reddit users and Wikipedia editors, the Quora community is obsessed with making the site as good and accurate as possible. If you have an iPhone, you can get Quora's handy app for free right here.